作者: oxidize 時(shí)間: 2025-3-21 22:48 作者: 哥哥噴涌而出 時(shí)間: 2025-3-22 00:46 作者: panorama 時(shí)間: 2025-3-22 08:09 作者: corporate 時(shí)間: 2025-3-22 09:19
https://doi.org/10.1007/978-3-662-64387-7Dirac-Gleichung; H?here Quantenmechanik; Klein-Gordon-Gleichung; Quantenmechanik II; Relativistische Str作者: 厭惡 時(shí)間: 2025-3-22 15:34
elastically loaded matrix. As this length increases, the Griffith inequality is satisfied and brittle failure occurs; however, the use of decreased grain sizes or the refine- ment of dislocation or twin distribution can further tend to "homoge- nize" the plastic flow and to decrease the magnitude of作者: 關(guān)心 時(shí)間: 2025-3-22 20:08 作者: avenge 時(shí)間: 2025-3-22 22:30
Georg Wolschinastic deformation at the nanoscale does not take place through lattice dislocation activity but through grain boundary processes including material rotation and mass diffusion. Moreover, fracture processes occur through nanovoid nucleation and coalescence. Some of these experimental observations wer作者: HARP 時(shí)間: 2025-3-23 03:16
Georg Wolschinastic deformation at the nanoscale does not take place through lattice dislocation activity but through grain boundary processes including material rotation and mass diffusion. Moreover, fracture processes occur through nanovoid nucleation and coalescence. Some of these experimental observations wer作者: 描繪 時(shí)間: 2025-3-23 07:40 作者: 業(yè)余愛(ài)好者 時(shí)間: 2025-3-23 13:06 作者: abolish 時(shí)間: 2025-3-23 14:47 作者: audiologist 時(shí)間: 2025-3-23 19:09 作者: paroxysm 時(shí)間: 2025-3-24 01:49
Georg WolschinPt-based alloys. Fatigue tests between 10. and 10.?cycles were performed, and in combination with postmortem characterization through grain orientation mapping and transmission electron microscopy, we identified differences in resistance to damage and crack propagation in the various alloys, and obs作者: 珍奇 時(shí)間: 2025-3-24 06:04
Georg Wolschintoughness, is observed. Subsequently, data analysis is conducted by invoking the type II Bazant size effect law on the nominal strengths, which allows a systematic extrapolation of lab measurements to much larger sizes where the FPZ size becomes negligible (making LEFM applicable). The size effect l作者: 防止 時(shí)間: 2025-3-24 09:50 作者: figment 時(shí)間: 2025-3-24 12:51 作者: FLIT 時(shí)間: 2025-3-24 15:09
Georg Wolschinompliant aerospace components, such as morphing wings. These skins will be able to deform and conform to the underlying structure, much like the way skins have evolved to work with components of biological actuation systems such as muscle and bone. They will increase the range of operation by utiliz作者: 不透氣 時(shí)間: 2025-3-24 20:50
implant (Mean fatigue life?=?2015 cycles) for 2 samples. Our FEA study on cylindrical model found the design life to be 1690 cycles with element size of 3.0E-3?m under the minimum stress of 112?kPa and maximum stress of 9.71?MPa according to Modified Goodman theorem.作者: 鞏固 時(shí)間: 2025-3-24 23:20 作者: Fibrinogen 時(shí)間: 2025-3-25 03:47 作者: 比目魚(yú) 時(shí)間: 2025-3-25 10:25 作者: FIS 時(shí)間: 2025-3-25 12:14 作者: 盡責(zé) 時(shí)間: 2025-3-25 18:48
,L?sung der Dirac-Gleichung mit Zentralpotenzial,Gleichung für myonische Atome, da der Bohr’sche Radius des Myons wegen der gro?en Teilchenmasse 207-mal kleiner als der des Elektrons ist, das Myon deshalb empfindlich auf die Eigenschaften des Kerns elektromagnetisch reagiert und die Wellenfunktionen tiefliegender Zust?nde sehr genau bestimmt werde作者: dainty 時(shí)間: 2025-3-25 23:08 作者: Coordinate 時(shí)間: 2025-3-26 01:06 作者: legacy 時(shí)間: 2025-3-26 06:28
Textbook 2021Latest editionst die Verbindung zur Galilei-invarianten nicht-relativistischen Quantenmechanik. Zuletzt werden kurz die Grundzüge der Quantenelektrodynamik und Elemente der relativistischen Streutheorie erl?utert..Anhand von Testaufgaben am Ende des Buchs wird der Leser dazu motiviert, den Stoff selbst beispielha作者: infelicitous 時(shí)間: 2025-3-26 11:35
rt ist die Verbindung zur Galilei-invarianten nicht-relativistischen Quantenmechanik. Zuletzt werden kurz die Grundzüge der Quantenelektrodynamik und Elemente der relativistischen Streutheorie erl?utert..Anhand von Testaufgaben am Ende des Buchs wird der Leser dazu motiviert, den Stoff selbst beispielha978-3-662-64386-0978-3-662-64387-7作者: 率直 時(shí)間: 2025-3-26 14:37 作者: 偶像 時(shí)間: 2025-3-26 20:14
Georg Wolschinranging from nanometers to millimeters. In this presentation, . fracture toughness and fatigue-crack propagation properties of dentin and human cortical bone are examined from a perspective of discerning how these properties depend upon such microstructural hierarchies. The motivation for this is th作者: BUST 時(shí)間: 2025-3-27 00:10
Georg Wolschinand nanometer regimes has led in the mid seventies to the development of .. In the mid nineties a new term . was used by the author to indicate the forthcoming excessive activity in this field and point out to the need for new constitutive equations and mechanics tools to be developed in relation to作者: GULLY 時(shí)間: 2025-3-27 05:08
Georg Wolschinand nanometer regimes has led in the mid seventies to the development of .. In the mid nineties a new term . was used by the author to indicate the forthcoming excessive activity in this field and point out to the need for new constitutive equations and mechanics tools to be developed in relation to作者: Flavouring 時(shí)間: 2025-3-27 08:24
Georg Wolschiny two-phase solids by a steady cooling process. The resulting boundary-value problems of the stationary plane thermoelasticity are solved by means of the method of complex analysis as well as of the finite element method. Moreover, using appropriate directional criteria established for crack path pr作者: 向外供接觸 時(shí)間: 2025-3-27 11:09
Georg Wolschiny two-phase solids by a steady cooling process. The resulting boundary-value problems of the stationary plane thermoelasticity are solved by means of the method of complex analysis as well as of the finite element method. Moreover, using appropriate directional criteria established for crack path pr作者: 不真 時(shí)間: 2025-3-27 14:02
Georg Wolschiny two-phase solids by a steady cooling process. The resulting boundary-value problems of the stationary plane thermoelasticity are solved by means of the method of complex analysis as well as of the finite element method. Moreover, using appropriate directional criteria established for crack path pr作者: jovial 時(shí)間: 2025-3-27 21:04
Georg Wolschiny two-phase solids by a steady cooling process. The resulting boundary-value problems of the stationary plane thermoelasticity are solved by means of the method of complex analysis as well as of the finite element method. Moreover, using appropriate directional criteria established for crack path pr作者: Homocystinuria 時(shí)間: 2025-3-28 00:57
Georg Wolschinystalline metals, a dominant damage mechanism is the abnormal growth of grains up to 100 times their original size. Previous in situ synchrotron experiments have revealed that this grain growth process precedes crack formation and takes up a majority of the fatigue lifetime. The growth of nanocrysta作者: Allodynia 時(shí)間: 2025-3-28 04:42 作者: 歹徒 時(shí)間: 2025-3-28 08:38
Georg Wolschinthe nominal peak loads are less than the ultimate capacity of the structure. In this paper, an experimental work, consists of two specimens, was introduced to study the fatigue behavior of shear connectors and steel-concrete composite beams. The fatigue tests were conducted under a four-point bendin作者: theta-waves 時(shí)間: 2025-3-28 12:10
Georg Wolschinther characterize the macroscale, thermal and mechanical response of these materials under various near-resonant mechanical excitations. The fabrication of mock energetic samples based on the PBXN-109 formulation, comprised of hydroxyl-terminated polybutadiene (HTPB) binder with 85% solids loading a作者: organism 時(shí)間: 2025-3-28 16:29 作者: 哪有黃油 時(shí)間: 2025-3-28 20:35
lant through an electrospinning process, utilizing biocompatible fibers. Experimental models have been developed to evaluate the forces experienced on a cemented cylinder shape titanium implant through a static and cyclic tests. Finite element analysis (FEA) model for an uncoated cylindrical cemente作者: 浮雕 時(shí)間: 2025-3-29 00:48
Einleitung,n behandelt, insbesondere die Dirac-Gleichung für Fermionen, und die Klein-Gordon-Gleichung für Bosonen. Im Coulomb-Feld von wasserstoff?hnlichen Kernen lassen sich mit relativistischen Wellenglei-chungen die elektronischen (oder myonischen) Energieniveaus und Ei-genfunktionen – bis auf quantenelekt作者: exophthalmos 時(shí)間: 2025-3-29 05:48
Verbindung zur nichtrelativistischen Quantenmechanik,iant gegenüber Lorentz-Transformationen (nicht Lorentz-kovariant) ist und den Eigendrehimpuls der Teilchen - insbesondere des Elektrons - unberücksichtigt l?sst, kann sie nicht Grundlage einer relativistischen Theorie sein. In diesem Kapitel wird gezeigt, wie man das Korrespondenzprinzip nutzt, um r作者: GEM 時(shí)間: 2025-3-29 09:30
Klein-Gordon-Gleichung,e homogene partielle Differenzialgleichung zweiter Ordnung, die unter Lorentz-Transformation??forminvariant (relativistisch kovariant) ist. Wir untersuchen sie hier zun?chst als Gleichung für ein freies Spin-0-Teilchen, sp?ter für ein Meson im elektromagnetischen Feld, beispielsweise ein negatives P作者: 黃油沒(méi)有 時(shí)間: 2025-3-29 12:36
Dirac-Gleichung,hen und ?rtlichen Ableitungen . Gleichung. Aus dem Ansatz eines linearen Hamiltonoperators mit Alpha- und Beta-Matrizen ergibt sich bei passender Wahl der . Matrizen die Dirac-Gleichung. Da die Gleichung von erster Ordnung in der Zeit ist, bleibt die Dichte positiv semidefinit; wegen der Forderung r作者: 宏偉 時(shí)間: 2025-3-29 18:41 作者: 步履蹣跚 時(shí)間: 2025-3-29 23:34 作者: Foam-Cells 時(shí)間: 2025-3-30 01:09
,Das Klein’sche Paradoxon, der Barriere die Ruhemasse des Elektrons übersteigt: Beim Klein’schen Paradoxon findet man als Folge der Dirac-Theorie eine unerwartet hohe Transmission relativistischer Elektronen durch eine steil ansteigende (im Idealfall senkrechte) Potenzialwand; sie h?ngt nur schwach von der Barriereh?he ab. D作者: nepotism 時(shí)間: 2025-3-30 04:55
Dirac-Neutrinos: Die Weyl-Gleichung,sie die Parit?tsinvarianz und wurde deshalb erst nach der experimentellen Best?tigung der Parit?tsverletzung von den Theoretikern akzeptiert. Zwar ist seit der Entdeckung der Neutrinooszillationen (2002) klar, dass Neutrinos – anders als von Pauli ursprünglich vorgesehen – nicht masselos sind, sonde
